Street Fire Plug Wire Set LS 4.8L/5.3L/6.0L

The MSD Ignition Street Fire Plug Wire Set (MSD 5574) is an 8mm spiral-core ignition wire kit specifically designed for GM LS-series engines, including 4.8L, 5.3L, and 6.0L displacements. This wire set is intended for street performance applications where reliable spark delivery is essential for engine performance and longevity.

Constructed with 8mm spiral-core technology, these wires provide effective noise suppression critical for modern vehicle electronics while maintaining low impedance for strong spark energy delivery. The black wire jacket is designed to resist UV degradation and ozone exposure, contributing to a longer service life compared to lower-quality alternatives.

Ideal for LS engine swaps, restorations, and street-driven vehicles, this wire set allows users to upgrade their ignition performance without the need for exotic tuning components. Many enthusiasts rebuilding LS-powered trucks, hot rods, or daily drivers choose MSD ignition systems to enhance spark consistency and reliability.